Hello Dan; I have had problems with my FS-4 that were similar to the symptoms you describe and the repair was rather simple, which may (or may not) mirror your situation. The FS-4 uses wafer switches similar to those found in our other classic Drake rigs. Over the years, these wafer switches build up oxidation which interferes with the switch's operation. Before I would try any advanced diagnostic/repair techniques as offered by Herbert Schulz, I suggest you clean the wafer switches with DeXoit and see if this clears up your problem. Disassembling the FS-4 is rather easy and all of the components are readily accessible. Be sure to remove the top inner shield to gain access to the wafer switches under the shield. I use DeXoit D-100 in the small dispenser bottle rather than the spray can, so that I can concentrate the cleaner on the switch contacts rather than spray down the whole assembly.
If this does not solve your problem, I personally would appreciate you and Herbert posting your discovery and repair techniques to the reflector rather than go private. We can all benefit from Herbert's considerable expertise in this matter. Best regards; Gene W5DDW Gene McCalmont 270 Oakridge Road Argyle Texas 76226 -----Original Message----- Does anyone have any experience with fixing a FS-4? I have one that puts out erratic freq.'s and the 0-5 does not change anything. Any ideas? Dan ---------------------------------------------------------------------- Submissions: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] - subscribe drakelist in body Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Brought to you courtesy of TLCHost.net http://www.tlchost.net/ ----------------------------------------------------------------------
